How does this picture work?
>>56263013
magic
>>56263013
surely a script out there for doing this.. I don't understand how it works
>>56263013
>>56263129
Basically, the way 4chan makes its thumbnails is very well understood and more or less boils down to "remove every so and so many pixels". With that in mind, if you make every so and so pixel one from another image, you can make the thumbnail different from the image as the thumbnail pixels are greatly outnumbered by the other pixels when you view the full version. This is greatly oversimplified but I hope you get the general idea.
Like this
>>56263414
TIL
>>56263429
Get out.